定容比热容c Specific heat at constant volume 任意准静态过程4=Mp=dh- u是状态量,设=f(7,) du=(m) dT +()dv aT ou dt +p 6q=() OT +(and定容 6=(7),7 6q、_/O OT dT aT定容比热容cv 任意准静态过程  q du pdv dh vdp = + = − u是状态量，设 u = f (T,v) v T ( ) ( ) u u du dT dv T v   = +   v T ( ) [ ( ) ] u u q dT p dv T v     = + +   定容 v ( ) u q dT T    =  v v v ( ) ( ) q u c dT T   = =  Specific heat at constant volume